QJSON: Introduce qobject_from_jsonv()

It accepts a va_list and will be used by QError. Also simplifies
the code a little, as the other qobject_from_() functions can
use it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

qjson.c

@@ -34,10 +34,12 @@ static void parse_json(JSONMessageParser *parser, QList *tokens)
     s->result = json_parser_parse(tokens, s->ap);
 }
 
-QObject *qobject_from_json(const char *string)
+QObject *qobject_from_jsonv(const char *string, va_list *ap)
 {
     JSONParsingState state = {};
 
+    state.ap = ap;
+
     json_message_parser_init(&state.parser, parse_json);
     json_message_parser_feed(&state.parser, string, strlen(string));
     json_message_parser_flush(&state.parser);
@@ -46,22 +48,21 @@ QObject *qobject_from_json(const char *string)
     return state.result;
 }
 
+QObject *qobject_from_json(const char *string)
+{
+    return qobject_from_jsonv(string, NULL);
+}
+
 QObject *qobject_from_jsonf(const char *string, ...)
 {
-    JSONParsingState state = {};
+    QObject *obj;
     va_list ap;
 
     va_start(ap, string);
-    state.ap = ≈
-
-    json_message_parser_init(&state.parser, parse_json);
-    json_message_parser_feed(&state.parser, string, strlen(string));
-    json_message_parser_flush(&state.parser);
-    json_message_parser_destroy(&state.parser);
-
+    obj = qobject_from_jsonv(string, &ap);
     va_end(ap);
 
-    return state.result;
+    return obj;
 }
 
 typedef struct ToJsonIterState

qjson.h

@@ -14,12 +14,14 @@
 #ifndef QJSON_H
 #define QJSON_H
 
+#include <stdarg.h>
 #include "qobject.h"
 #include "qstring.h"
 
 QObject *qobject_from_json(const char *string);
 QObject *qobject_from_jsonf(const char *string, ...)
     __attribute__((__format__ (__printf__, 1, 2)));
+QObject *qobject_from_jsonv(const char *string, va_list *ap);
 
 QString *qobject_to_json(const QObject *obj);